Guardians, not herders
Livestock guardian dogs (LGDs) are a different job description from the border collies most people picture with sheep. A guardian breed is raised from puppyhood alongside the herd it will protect, bonds with the goats as its social group, and spends its life living among them rather than being directed from outside — its entire value is being physically present, alert, and willing to confront a predator.
The most common breeds in American targeted-grazing operations are the Great Pyrenees, Anatolian Shepherd, and Akbash — all landrace breeds developed over centuries in Europe and Asia specifically to guard sheep and goat flocks from wolves, bears, and other predators, long before targeted grazing existed as a business.
Why they matter for a property with fencing and neighbors
A grazing project set up on someone's property — often adjacent to hiking trails, backyards, or public land — has real predator exposure: coyotes are common across California, and mountain lions are present in many of the same hill and canyon habitats where grazing gets used. A working guardian dog's bark and presence deter most predators without a physical confrontation most of the time, which is the outcome everyone wants.
Because these dogs live with the herd rather than a handler, professional operations post signage and brief neighbors when a project starts — a friendly-looking dog in a fenced area is doing a specific job, and approaching or feeding it can undermine the training that keeps it focused on the herd rather than on people.